Important events and information about the PLATO system featured in this document include a short history of the development of the PLATO system, a list of the PLATO project's financial supporters, a chronological rundown of highlights in PLATO's history, and an extensive bibliography of resources about PLATO published between 1961 and 1979. A map of PLATO system sites is also included, as well as graphs showing PLATO usage. (LLS)